Smart hinge? There are keyboard cases that make iPad just like MacBook Pro, like the following one. Similar models have been on market for 2 years. I guess Microsoft copied the idea on their surface.
http://www.uplaytablet.com/sharksucker-aluminum-wireless-keyboard-case-for-ipad-make-your-ipad-becomes-macbook-air

Oooh...the GriD - that was a fun bit of machinery back in the mid-80s. I did a fair amount of business doing custom GriDs for electric utility companies. They had two empty ROM sockets onboard and a nifty little link to MS-DOS to make them run the software embedded in the ROMS. Chuck out my last unit about six years ago - sob - could have used it to kill this *#$! squirrel that keeps coming in my Window(s 8) VM....
ss/wb